EfikaMX: Enable EXT2 booting

[u-boot] / drivers / i2c / soft_i2c.c

diff --git a/drivers/i2c/soft_i2c.c b/drivers/i2c/soft_i2c.c
index e0cf1e10db574830f3fd16838637d3c7ef891215..9b02e89e0392c975bf71879ad4a056d4dddd1d10 100644 (file)
--- a/drivers/i2c/soft_i2c.c
+++ b/drivers/i2c/soft_i2c.c
@@ -30,9 +30,7 @@
 #include <ioports.h>
 #include <asm/io.h>
 #endif
-#if defined(CONFIG_AT91RM9200) || \
-       defined(CONFIG_AT91SAM9260) ||  defined(CONFIG_AT91SAM9261) || \
-       defined(CONFIG_AT91SAM9263)
+#if defined(CONFIG_AT91FAMILY)
 #include <asm/io.h>
 #include <asm/arch/hardware.h>
 #include <asm/arch/at91_pio.h>
@@ -51,6 +49,58 @@
 #endif
 #include <i2c.h>
 
+#if defined(CONFIG_SOFT_I2C_GPIO_SCL)
+# include <asm/gpio.h>
+
+# ifndef I2C_GPIO_SYNC
+#  define I2C_GPIO_SYNC
+# endif
+
+# ifndef I2C_INIT
+#  define I2C_INIT \
+       do { \
+               gpio_request(CONFIG_SOFT_I2C_GPIO_SCL, "soft_i2c"); \
+               gpio_request(CONFIG_SOFT_I2C_GPIO_SDA, "soft_i2c"); \
+       } while (0)
+# endif
+
+# ifndef I2C_ACTIVE
+#  define I2C_ACTIVE do { } while (0)
+# endif
+
+# ifndef I2C_TRISTATE
+#  define I2C_TRISTATE do { } while (0)
+# endif
+
+# ifndef I2C_READ
+#  define I2C_READ gpio_get_value(CONFIG_SOFT_I2C_GPIO_SDA)
+# endif
+
+# ifndef I2C_SDA
+#  define I2C_SDA(bit) \
+       do { \
+               if (bit) \
+                       gpio_direction_input(CONFIG_SOFT_I2C_GPIO_SDA); \
+               else \
+                       gpio_direction_output(CONFIG_SOFT_I2C_GPIO_SDA, 0); \
+               I2C_GPIO_SYNC; \
+       } while (0)
+# endif
+
+# ifndef I2C_SCL
+#  define I2C_SCL(bit) \
+       do { \
+               gpio_direction_output(CONFIG_SOFT_I2C_GPIO_SCL, bit); \
+               I2C_GPIO_SYNC; \
+       } while (0)
+# endif
+
+# ifndef I2C_DELAY
+#  define I2C_DELAY udelay(5)  /* 1/4 I2C clock duration */
+# endif
+
+#endif
+
 /* #define     DEBUG_I2C       */
 
 #ifdef DEBUG_I2C
@@ -236,6 +286,7 @@ int i2c_set_bus_num(unsigned int bus)
                int     ret;
 
                ret = i2x_mux_select_mux(bus);
+               i2c_init_board();
                if (ret == 0)
                        i2c_bus_num = bus;
                else